Car-seat back



May 21, 1929 0. 1. LEVINE I 1,713,542

CAR SEAT BACK Filed Sept. 1, 1925 Z aways.

Patented May 21, 1929.

UNITED STATES PATENT OFFICE.

DAVID I. LEVINE, or WAKEFIELD, MASSACHUSETTS, ASSIGNOR To ,HEYWOOD-WAKE- FIELD'COMPANY, or WAKEFIELD, MASSACHUSETTS, A CORPORATION or MASSA- CHUSE'ITS.

Application filed September My invention relates to cushions having been primarily designed for application to car seat backs.

In a common form of construction of seat backs, springs are placed between pairs of broad strips of thin sheet metal which are arranged side by side on a frame to upport a fabric cover, these metal strips belng made long enough to allow a certain amount of bulge in both surfaces of the seat back. Heretofore the ends of these strips have been secured to the top and bottom members of the supporting frame. As a result, pressure on one portion of the seat back sufficient to push it'inwardly would cause other portions to bulge further out. This detracts from the comfort of the person leaning against the Seat back.

To overcome this objection I Secure one end of each strip in such a way as to take up any slack caused by bending part of the strip inwardly and so prevent undesirable bulging of other portions of the strip.

A preferred embodiment of the invention is illustrated in the drawing in which:

Figure 1 is a conventional car seat in perspective. Figure 2 is an elevation of an assembled frame for a car seat back embodying the present invention.

Figure 3 is an end view of the same.

Figure 1- is a sectional View on the line 44 of Figure 2.

Referring to the drawing in detail, 1 rep resents the open framework of a conventional car seat back preferably consisting of metal channel pieces 2 and.3, the former being bent over into a U-Shape to form three sides thereof, the latter constituting the fourth side.

The cross section of both pieces is generally in the form of a W. Strips of wood 4, 4, are fitted intothe middle groove of these members to provide means for tacking on fabric covers. The frame is braced by a cross bar 5. Extending from top to bottom on either side of the frame are'broad strips of thin metal 6, which are corrugated, as a 7, to prevent transverse buckling. These strips are arranged in pairs, each strip on one side of the frame being opposed by a strip on the other side. A series of springs 8 are positioned between the opposed strips of each pair and engage theirinner faces, normally bulging them out, the strips thus acting as cover members for the springs. As shown, the up- CAR- SEAT BACK.

1, 1925. Serial No. 53,901.

\Vhen any of the strips are pressed inwardly so as to'reduce the bulge, the elongated loops 12 permit motion of the adjacent ends of the strips substantially in the plane of the frame and toward the edge thereof. Such motion will, of course increase the spacing between the two ends of the strip and thus obviate undesirable bulging of portions of the strip not pressed inwardly.

Instead of securin the upper ends of the strips directly to the rame and the lower ends loosely, as described, the reverse arrangement may be made, the lower ends being attached directly to the frame and the upper ends through loops or other suitable means for giving them freedom of motion toward the edge of the frame, or, if preferred, the strips may be connected to the frame loosely at both ends so that slack in the strips produced by reducing the normal bulge may be taken up by movement of either or both ends of the strip toward the periphery of the frame.

It is obvious also that this method of loosely connecting one end of each strip may be useful in cases where the strip is normally straight but subject to being bulged in use.

It is to be understood that this invention is not limited by the disclosure in the drawing and description, but is subject to such changes and modifications as fall within the scope of the appended claims.

' I claim:

1. A cushion comprising an open frame member, flexible strips each fixed at one end to one side of the frame member, and means loosely connecting the other end of each strip to another side of the frame member, said connecting means comprising an elongated loop formed integrally with each strip and a rod threaded through the loops and Secured to the frame member.

2. A cushion comprising an open frame member, flexible strips each fixed at one end to one side of the frame member, and means loosely connecting the other end of each strip 5 to another side of the frame member, said connecting means comprising an elongated loop at the end of each strip, a floating rodzthreaded through saidloops'and a series of spaced anchoringelements engaging the rod at points adjacent to said loops, said anchoring 10 elements being secured to said frame.

In testimony whereof I have aflixed my signature.

DAVID I. LEVINE. 

